Many key concepts of civil law in most modern legal systems of europe can be traced to -

The answer is option C - A compilation of Roman laws gathered by legal scholars under the direction of Byzantine Emperor Justinian

Explanation:

Justinian I, originally known as Petrus Sabbatius, the Byzantine emperor (Between 527-565) was notable for reforming the imperial government and the compilations of the code of Justinian.

By him, a committee of Jurists were formed who examined past laws and information on opinions made by exceptional Roman Jurists. They removed every form of contradictions and conflicts and that gave rise to the formulation of Roman law, which provided the basis for the establishment of legal codes widely used in Europe and Latin America.